428172 divided by 75 
The aim is to understand the frequency of 75 in 428172.

Step 1:
If we divide 4 by 75, we get 0 and a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 4 to get 4.
Bring next digit (2) of the dividend behind the 4 and repeat the process: 42 / 75

Moving on to step 2:
The number 75 fits into 42 0 times, leaving a remainder of 42.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 42 to get 42.
Bring next digit (8) of the dividend behind the 42 and repeat the process: 428 / 75

Step 3:
If we divide 428 by 75, we get 5 and a remainder of 53.
Use 5 as the next digit of our solution. 
Result so far: 5.0
Deduct 375 from 428 and we're left with 53.
Fetch the next digit (1) from the dividend, attach it to 53 and continue: 531 / 75

Going ahead to step 4:
The number 75 fits into 531 7 times, leaving a remainder of 6.
The next digit of our result is 7. 
Result so far: 57.0
Subtracting 525 from 531 leaves us with 6.
Fetch the next digit (7) from the dividend, attach it to 6 and continue: 67 / 75

Step 5:
The number 75 fits into 67 0 times, leaving a remainder of 67.
The number 0 becomes the next digit in our result. 
Result so far: 570.0
Subtracting 0 from 67 leaves us with 67.
Append the next digit (2) from the dividend to 67 and continue with: 672 / 75

Advancing to step 6:
75 can be fit into 672 8 times, resulting in a remainder of 72.
Put 8 as the next digit of the answer. 
Result so far: 5708.0
Subtracting 600 from 672 leaves us with 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

Advancing to step 7:
75 can be fit into 720 9 times, resulting in a remainder of 45.
Use 9 as the next digit of our solution. 
Result so far: 5708.9
If we subtract 675 from 720, we get 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

Going ahead to step 8:
The number 75 fits into 450 6 times, leaving a remainder of 0.
Use 6 as the next digit of our solution. 
Result so far: 5708.96
If we take 450 away from 450, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Let's proceed to step 9:
When dividing 0 by 75, we get 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 5708.96
Subtract 0 from 0 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Going ahead to step 10:
75 goes into 0 0 times with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 5708.96
If we subtract 0 from 0, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The quotient of the division is 5708.96, and the remainder is 0.0.